Which of the following will not displace hydrogen?

Question

Which of the following will not displace hydrogen? (A)  Hg  (B)  Sn  (C)  Pb  (D)  Ba

Tardigrade Admin · Accepted Answer

We know that the metal mercury (Hg) which is placed below hydrogen in eletro chemical series, is less reactive than hydrogen. Thus it does not displace hydrogen from water and acids.

Q. Which of the following will not displace hydrogen?

$H g$

$S n$

$P b$

$B a$

We know that the metal mercury $(H g)$ which is placed below hydrogen in eletro chemical series, is less reactive than hydrogen. Thus it does not displace hydrogen from water and acids.